Upsale
Viettel Customer Service's Upsale Service is
comprehensively designed to help businesses
not only sell more products/services but also
maximize customer lifetime value.
Upsell at the right time.
For the right needs.
With the right experience.
Viettel Customer Service’s multi-channel revenue growth solution leverages modern technology and optimized operations to help businesses expand their sales channels and accelerate revenue growth.
With cross-industry experience and large-scale operating capacity, Viettel Customer Service delivers professional Telesales and Digisales services, applying AI and Big Data to optimize upsell/cross-sell strategies and engage customers across channels — driving superior sales performance.
Our outbound sales service empowers businesses to proactively reach customers through structured telesales operations, helping introduce new products, re-engage inactive users, and drive conversions at scale.
With a disciplined approach and trained sales agents, we help expand market coverage and deliver measurable revenue growth.
Proactively reach customers via telesales to promote new products and services.
Execute renewal reminders, contract extensions, and re-engagement campaigns.
Expand market coverage and boost conversion rates in a short time.
Our inbound sales solution ensures every customer touchpoint via call, chat, email, or messaging is handled efficiently while uncovering sales opportunities in real time.
By combining fast response with expert consultation, we help businesses elevate customer experience and improve conversion outcomes.
Handle inquiries via calls, chat, email, and messaging platforms.
Provide product consultation and identify upsell/cross-sell opportunities instantly.
Improve conversion rates through fast, precise support.
Leverage Digital Marketing combined with CDP, AI, and Marketing Automation across multiple channels to attract, engage, and nurture potential customers throughout the entire journey from lead generation to conversion.
Execute multi-channel Digital Marketing and build content ecosystems across platforms
Run cross-channel advertising integrated with CDP & AI for customer segmentation and high-quality lead generation
Set up automated, multi-channel nurturing and engagement to increase conversion rates
Utilize behavioral data and usage history combined with AI, Automation, and multi-channel engagement to maximize customer value, drive cross-sell/upsell, and enhance long-term loyalty.
Analyze data and personalize product/service recommendations
Implement cross-sell/upsell via chat, telesales, and automated workflows to boost ARPU
Provide post-sales, multi-channel care to enhance experience and long-term customer value
Build a centralized management system that enables businesses to track the entire customer journey and touchpoints in real time, allowing continuous optimization.
Real-time tracking: Lead – Conversion – Revenue
Measure performance by channel and touchpoint (chat, telesales, ads, …)
Centralized dashboard for faster decision-making
A/B testing and customer journey optimization
Consultants with 15+ years of experience
Calls/ day
Data points/agent/ day
Outstanding Experience and Resources
Over 22 years experience, 4.000+ personnel, 1.000+ agents, and more than 200.000 calls/ day.
Drive revenue growth effectively
Increase conversion rates, raise ARPU, and maximize the value of both existing and prospective customers.
Agile in both scale and cost efficiency
Easily adjust resources and adopt flexible pricing models to fit your needs.
Reporting & KPIs
Campaigns are monitored in real time with clearly defined KPIs.
Enhance Customer Experience
Integrating sales and service to drive revenue, loyalty, and competitive advantage.
Safety & Compliance Assurance
Compliant with international data security standards, fully safeguarding customer and business information.
What our clients say
Viettel Customer Service consistently delivers services in full compliance with our requirements, fulfills all agreed-upon commitments, and meets the expected scope of work.
Epass - VDTC
We highly value the current services provided by Viettel Customer Service. Moving forward, both parties will continue to work more closely together to further enhance the effectiveness of our collaboration.
Unitel - Laos
We have chosen to use Viettel Customer Service’s customer experience consulting and customer care services. We look forward to continuing our collaboration in the time ahead to implement more in-depth initiatives.
Vietnam National Children's Hospital
Viettel Customer Service consistently delivers fast response times. Going forward, both sides will continue to work closely and enhance coordination to maintain efficiency, especially during peak periods.
Tendoo
The Viettel Customer Service team exemplifies the standards of modern customer care through their professionalism and service quality. We highly value their dedication, proactive support, and unwavering focus on prioritizing customers’ interests.
Viettel Media
Viettel Customer Service demonstrates outstanding performance and a high level of professionalism. We have full confidence in the quality of their services and are ready to recommend Viettel Customer Service to other markets.
Halotel - Tazania
Explore our service easily with this list of frequently asked questions
Yes. We support businesses in implementing multi-channel sales, including outbound calls, online platforms, and social media channels. This diversified approach helps businesses reach a wider audience, increase conversion opportunities, and enhance overall sales performance.
Yes. We provide fast, dedicated, and proactive customer care to ensure that customers receive timely assistance throughout their experience with the product or service.
Beyond sales activities, our Upsale service also integrates sales consultation with post-sale support, helping businesses not only increase revenue but also strengthen long-term customer relationships.
This end-to-end approach enhances customer satisfaction, improves retention, and maximizes customer lifetime value.
The service cost is calculated flexibly, depending on the business scale, sales objectives, and the channels selected. We optimize the pricing model to ensure that businesses pay only for what they truly need while still achieving maximum operational efficiency.
Accompanying you to elevate the customer experience
Beyond being a pioneer in customer experience, we connect with our customers through innovative technology and heartfelt understanding.
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